XML 47 R27.htm IDEA: XBRL DOCUMENT v3.2.0.727
Accounts Receivable - Schedule of Accounts Receivable, Net (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Receivables [Abstract]    
Gross accounts receivable $ 1,296,837 $ 1,200,958
Allowance for contractual adjustments and uncollectibles (916,292) (848,767)
Accounts receivable, net $ 380,545 $ 352,191